code: def test_nonexistent(self):
      plugin = self.load_plugin([_RUN_WITH_GRAPH_WITH_METADATA])
      with self.assertRaises(errors.NotFoundError):
          graph = self._get_graph(
              plugin,
              run="nope",
              tag=None,
              is_conceptual=False,
              experiment="eid",
          )
  
imports: import collections.abc
  import math
  import os.path
  import tensorflow
  from google.protobuf import text_format
  from tensorboard import context
  from tensorboard import errors
  from tensorboard.backend.event_processing import data_provider
  from tensorboard.backend.event_processing import plugin_event_multiplexer
  from tensorboard.compat.proto import config_pb2
  from tensorboard.plugins import base_plugin
  from tensorboard.plugins.graph import graphs_plugin
  from tensorboard.util import test_util
label_desc: Use image node_id 5 for calling the GraphsPluginV1Test obj's underlying member method code with example usage: obj.test_nonexistent() without return types